.project_ul li{height: 400px}
.project_ul li span{margin-top:119px }
.color_box{height: 400px}
.color_bg{height: 400px}
.span1{background-image: url("../images/li_bg_05.png")}
.span2{background-image: url("../images/li_bg_01.png")}
.span3{background-image: url("../images/li_bg_06.png")}